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| 鄂尔多斯盆地西南缘三叠系烃源岩评价及油源对比 | |
| 引用本文： | 赵彦德,罗安湘,孙柏年,惠潇,张忠义,程党性.鄂尔多斯盆地西南缘三叠系烃源岩评价及油源对比[J].兰州大学学报(自然科学版),2012,48(3):1-6,13. |
| 作者姓名： | 赵彦德 罗安湘 孙柏年 惠潇 张忠义 程党性 |
| 作者单位： | 1. 兰州大学地质科学与矿产资源学院,兰州730000;中国石油天然气集团公司长庆油田分公司勘探开发研究院,西安710018;中国石油天然气集团公司低渗透油气田勘探开发国家工程实验室,西安710018 2. 中国石油天然气集团公司长庆油田分公司勘探开发研究院,西安710018;中国石油天然气集团公司低渗透油气田勘探开发国家工程实验室,西安710018 3. 兰州大学地质科学与矿产资源学院,兰州,730000 |
| 基金项目： | 国家重点基础研究发展计划(973计划)项目，国家科技重大专项 |
| 摘 要： | 应用有机岩石学和分子地球化学的手段和方法,对鄂尔多斯盆地西南缘三叠系延长组长7段暗色泥岩和长8油层组原油,进行地球化学精细定量分析,研究了长7段暗色泥岩地质地球化学特征,评价了西南缘三叠系延长组长7烃源岩生烃潜力,并对长8油层组原油展开精细油源对比分析.结果表明:鄂尔多斯盆地西南缘三叠系延长组长7段暗色泥岩有机质丰度高、类型好、成熟度高,与盆地本部长7优质烃源岩具相近似的电性、岩性和地球化学特征,为一套优质的烃源岩.长8油层组原油在母源性质、沉积环境、成熟度等方而与长7段烃源岩有相近似的特征,二者具有较好的亲缘关系,长8原油来自长7段烃源岩. |
| 关 键 词： | 烃源岩 油源分析 鄂尔多斯盆地 |
Hydrocarbon source evaluation and oil source contrast of the triassic system in southwest margin, Ordos basin |
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| ZHAO Yan-de , LUO An-xiang , SUN Bai-nian , HUI Xiao , ZHANG Zhong-yi , CHENG Dang-xing.Hydrocarbon source evaluation and oil source contrast of the triassic system in southwest margin, Ordos basin[J].Journal of Lanzhou University(Natural Science),2012,48(3):1-6,13. | |
| Authors: | ZHAO Yan-de LUO An-xiang SUN Bai-nian HUI Xiao ZHANG Zhong-yi CHENG Dang-xing |
| Institution: | (2,3) 1.School of Earth Science,Lanzhou University,Lanzhou 730000,China 2.Exploration & Development Research Institute,Changqing Oilfieid Company,PetroChina, Xi’an 710018,China 3.National Engineering Laboratory for Exploration and Development of Low-Permeability Oil & Gas Fields, PetroChina,Xi’an 710018,China |
| Abstract: | Based on the methods of organic petrology and GC-MS,Triassic Chang 7 mudstone and Chang 8 crude oil were collected from the southwestern margin of the Ordos basin for a geochemical fine quantitative analysis.The geochemical characteristics of the hydrocarbon source and the hydrocarbon generating potential were discussed.The results showed that Chang 7 mudstone is still a major source rock in the study area with a high organic matter abundance,good types and characteristics of high maturity.At the same time,the geochemical features of the Chang 8 crude oils were investigated.Chang 8 crude oil and Chang 7 source showed similar characteristics in the aspects of resource properties,sedimentary environment and maturity.Therefore, Chang 8 crude oil mainly derived from the source rocks of the seventh members of the Yanchang formation in the southwestern margin of the Ordos basin. |
| Keywords: | hydrocarbon source rock oil source analysis Ordos basin |
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